File:Worm drive detail, roller hoist mechanism, rolling crest roller gate - plan and sections - Grand Valley Diversion Dam, Half a mile north of intersection of I-70 and Colorado HAER CO-90 (sheet 3 of 5).png

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file ‎(10,008 × 14,372 pixels, file size: 5.42 MB, MIME type: image/png)

Captions

Captions

Add a one-line explanation of what this file represents
This image is a JPEG version of the original TIF image at File: Worm drive detail, roller hoist mechanism, rolling crest roller gate - plan and sections - Grand Valley Diversion Dam, Half a mile north of intersection of I-70 and Colorado HAER CO-90 (sheet 3 of 5).tif.

However, any edits to the image should be based on the original TIF version in order to prevent generation loss, and both versions should be updated. Do not make edits based on this version.

Summary[edit]

Warning The original file is very high-resolution. It might not load properly or could cause your browser to freeze when opened at full size.
Worm drive detail, roller hoist mechanism, rolling crest roller gate - plan and sections - Grand Valley Diversion Dam, Half a mile north of intersection of I-70 and Colorado State Route 65, Cameo, Mesa County, CO
Photographer

Related names:

US Bureau of Reclamation, owner
Title
Worm drive detail, roller hoist mechanism, rolling crest roller gate - plan and sections - Grand Valley Diversion Dam, Half a mile north of intersection of I-70 and Colorado State Route 65, Cameo, Mesa County, CO
Depicted place Colorado; Mesa County; Cameo
Date Documentation compiled after 1968
Current location
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
Accession number
HAER CO-90 (sheet 3 of 5)
Credit line
This file comes from the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) or Historic American Landscapes Survey (HALS). These are programs of the National Park Service established for the purpose of documenting historic places. Records consist of measured drawings, archival photographs, and written reports.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Notes
  • Significance: Constructed between 1913 and 1916, the dam is the key structure of the Bureau of Reclamation's Grand Valley Project, which provides water to 42,000 acres of semi-arid land. At the time of its completion in the spring of 1916, the dam was one of only three American dams to utilize innovative gate technology first employed in Germany in 1902. The Grand Valley dam would later serve as the prototype for the Army Corps of Engineers' massive system of locks and dams on the Mississippi River. The project stands as an early representative example of federal involvement in western land development. The dam's roller gates were built by American manufacturers, from German design, during the early years of WWI; this process of roller-gate design and manufacture contributes to our understanding of wartime disruption of business partnerships and economic development. This relationship and the disruption by WWI resulted in American engineers gaining experience in the design fabrication and erection of roller gates.
  • Survey number: HAER CO-90
  • Building/structure dates: after. 1912- before. 1917 Initial Construction
Source https://www.loc.gov/pictures/item/co0920.sheet.00003a
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
Other versions
Object location39° 08′ 55″ N, 108° 19′ 13.01″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current03:38, 30 July 2014Thumbnail for version as of 03:38, 30 July 201410,008 × 14,372 (5.42 MB)Fæ (talk | contribs){{Compressed version|file=File:Worm_drive_detail,_roller_hoist_mechanism,_rolling_crest_roller_gate_-_plan_and_sections_-_Grand_Valley_Diversion_Dam,_Half_a_mile_north_of_intersection_of_I-70_and_Colorado_HAER_CO-90_(sheet_3_of_5).tif|thumb=nothumb}} =...

You cannot overwrite this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Worm_drive_detail,_roller_hoist_mechanism,_rolling_crest_roller_gate_-_plan_and_sections_-_Grand_Valley_Diversion_Dam,_Half_a_mile_north_of_intersection_of_I-70_and_Colorado_HAER_CO-90_(sheet_3_of_5).png&oldid=664231895"